Blc
abbr. 附面层控制（boundary layer control）
🗣️ 情景例句
Yes. This is Richard Stewart.
是的。我是Richard Stewart。
The outdoor concert was called off due to the weather.
露天音乐会由于天气原因被取消。
That is how Annie came to be with us.
这就是安妮和我们在一起的缘由。